diff options
author | 2021-03-09 10:01:17 -0600 | |
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committer | 2021-03-09 15:03:32 -0600 | |
commit | 149df90bb72ece740accaf3ea037cf40defcd1bd (patch) | |
tree | f0895c1729c06403abecadca1065d3dfc25de35f /policy-core/src/main/java/org | |
parent | dd9d31e90873e12623865fb21bf2e4603e3e0f19 (diff) |
add no locking feature
It provides an interface to applications for locking
purposes that always succeeds. It does not deny
acquiring resource locks.
Issue-ID: POLICY-3114
Signed-off-by: jhh <jorge.hernandez-herrero@att.com>
Change-Id: I6aebb5f40e4176e0ff7b0e6c6d4042a79dd0b7a3
Signed-off-by: jhh <jorge.hernandez-herrero@att.com>
Diffstat (limited to 'policy-core/src/main/java/org')
-rw-r--r-- | policy-core/src/main/java/org/onap/policy/drools/core/lock/AlwaysSuccessLock.java | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/policy-core/src/main/java/org/onap/policy/drools/core/lock/AlwaysSuccessLock.java b/policy-core/src/main/java/org/onap/policy/drools/core/lock/AlwaysSuccessLock.java new file mode 100644 index 00000000..6b1e1494 --- /dev/null +++ b/policy-core/src/main/java/org/onap/policy/drools/core/lock/AlwaysSuccessLock.java @@ -0,0 +1,64 @@ +/* + * ============LICENSE_START======================================================= + * ONAP + * ================================================================================ + * Copyright (C) 2021 AT&T Intellectual Property. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.drools.core.lock; + +import lombok.NonNull; + +/** + * Lock implementation whose operations always succeed. + */ +public class AlwaysSuccessLock extends LockImpl { + private static final long serialVersionUID = 1L; + + /** + * Overrides parent constructor. + */ + public AlwaysSuccessLock() { + setState(LockState.ACTIVE); + } + + /** + * Overrides parent constructor. + */ + public AlwaysSuccessLock(@NonNull LockState state, @NonNull String resourceId, + @NonNull String ownerKey, int holdSec, @NonNull LockCallback callback) { + super(state, resourceId, ownerKey, holdSec, callback); + if (!isActive()) { + throw new IllegalArgumentException("AlwaysSuccessLock can only be created in the active state"); + } + } + + /** + * Constructs the object. + */ + public AlwaysSuccessLock(@NonNull String resourceId, @NonNull String ownerKey, + int holdSec, @NonNull LockCallback callback) { + super(LockState.ACTIVE, resourceId, ownerKey, holdSec, callback); + } + + /** + * Always returns true. + */ + @Override + public synchronized boolean free() { + return true; + } +} |